Rubber-lined fabric hose.



B. L. STOWE-` RUBBER LIIQED FABRIC BUSH.

APPLICATmN F1LED1'L'1L111-1911.

We '5% @may BENJAMIN L. STOWE, 0F JERSEY CITY, NEW JERSEY.

RUBBER-LINED FABRIC HOSE.

Specification of Letters Patent.

Patented Feb. 1.8, 1913.

Application led February 18, 1911. Serial No. 609,288.

To all whom. it may concern Be it known that l, BENJAMiN L. S'rown, a citizen of the United States, residing in Jersey City, county of Hudson, and State of New Jersey, have invented a new and useful Improvement in Rubber-Lined Fabric llose, of which the following is a specification.

Rubber-lined fabric hose, when empty and not in use, is customarily flattened out, und stored in this flattened form by ceiling on a reel, or otherwise or hy'piling in .folds on a rack. To facilitate the flattening out of the hose, it is usual to preliminarily fiatten it out and pinch in 1ts opposite longitudinal edges creases or folding seams which form the permanent lines along which the opposed faces of the hose will fold when flattened.

The object of m invention is to prevent the too sharp pineiiing of the rubber lining along these lines of crease, which may in time result in the weakening and rupture of the rubber lining along said lilies.

To this end, my invention consists in providing the hose with internally projecting ridges extending parallel with, and in proximity to, the lines of fold or crease, so that the faces of the flattenedout hose will meet first along these ridges which will constitute internally projecting separatin strips by which the meeting faces of the attened out hose in the neighborhood of the lines of fold or crease will be held far enough apart to prevent that portion of the rubber lining along the lines of fold from being sharply bent and tightly pinched.

The nature of my invention and the manner in which the same is, or may be, ',arried into effect Will be readily understood by reference to the accompanying drawings in Which- Figure l is a cross section of hydraulicI rubber-lined fabric hose embodying my invention,-the hose being in expanded condition. Fig-2 is a cross section of the same in flattened out condition. Figs. 3 and 4 are like views of a modification.

A is the tubular fabric exterior and B is the tubular soft. rubber lining of the hose. The rubber lining isunited to the fabric jacket by and during the process of -vulcanization as usual in hose of this kind, the fabric hose containing its tubular rubber lining coated with rubber cement being placed in the vulcanizer, and then steam at high pressure being introduced, which operates to effect the vulcanization, und at the sume time to expand the tubular rubber lining into close contact with the walls of the fabric jacket, to which it is tightly united by the vulcuniziug operation. 'l`he finished hose is cnlased longitlulinnlly nlong dianietrically opposite lines a, so that when flattened out its faces will naturally fold together along these lines. 'lo prevent. the faces from coining together where they are bent along these lines, with ronsequentundue pinching of the rubber lining at the creuses, l provide along and in close proximity to the lines n of fold or creuse, internally projecting ridges which ridges are formed, as shown in Figs. l and 2, by narrow longitudiiull strips lc of required thickness :lud of suit able material, (preferably soft rubber) which are cemented to the exterior ol' the rubber lining, adjacent to the err-.uses und parallel therewith, the rubber lining thus beA ing in effect thickened along the lines de fined by these strips. The result is that when the rubber lining thus provided with the thickening strips c is vulcanized into the tubular abrio exterior A, the expansive force of the steam Within the rubber lining fort-.cs the exterior of the lining, including the strips c, into close union-with the walls of the fabric, the pressure being such as to bring the exterior faces ol' the strips c flush with the exterior face of the rest of the lining, the consequent-,e being that the lining along where the strips f extend, is by those strips pushed in und caused to assume the form of ridges l which protrude into the interior bore of the hose. and, as seen in Fig. 2, serve to hold the faces of the lining of the flattened out host` in the immediate vicinity of the creases o far enough a art to prevent the too abrupt bending of tie hose along these lines, and the consequent nnduc'pinching of the rnb ber lining at the creases. The thickening strips c can be skived to a bevel along their longer edges, as indicated at c; but this is not indispensable.

Manifestly the strips c can be placed upon the interior of the rubber lining instead of upon its exterior; but the latter arrangement is preferred inasmuch as thereby the smooth unbroken interior surface of the lining is zreserved.

In the mo ification shown in Figs. 3 and 4, the thickening ribs or strips are on the tubular woven fabric A instead of upon the rubber lining B, and'in the illustration of my invention represented in these figures these ribs, shown at c2, are woven integral with the fabric. They occupy the same p0- sition relatively to the creases a as the rubber thickening ribs or strips c in Figs. 1 and 2, and they serve the same purpose viz: to cause the rubber lining B to protrude or bulgeinwardly along lines in proximity to the lines of crease to forni the ridges b which, when the hose is collapsed, will by their coming together against one another prevent the sharp flattening of the hose along the edges a. ln the hose fabric A the warp is lettered and the weft y. rlhe ribs 02 are produced by increasing the amount of warp in the fabric at the particular points and along the particular lines at which it is decided the ribs shall appear. If the fabric is a multiply fabric, then the increased Warp will preferably be in the inner ply so as to be next to the rubber lining as shown;

and in any fabric, whether single ply or multiply, the warps used to produce the thickening ribs can be thrown to the inner face of the fabric more frequently than to the outer in order to produce on that face a twill in ribs or ridges, as will be understood by those skilled in the art to which my invention pertains.

` ln conclusion l would state that ll ann rosanna aware that it has heretofore been proposed, as shown for example in U. S. Patent #298321, to reinforce the creased edges of rubber-lined woven fabric hose by rubber strips applied to the rubber lining directly upon the lines of fold or crease, and this l do not claim; but

What I claim as new and desire to secure by Letters Patent is:

l. Rubber-lined fabric hose provided along lines parallel with the creased edges of the hose, With internally protruding ridges on each side of, and in close proximity to, the lines of crease, substantially as and for the purpose hereinbefore setv forth.

2. Rubber-lined fabric hose provided, along lines parallel with the `creased edges of the hose, with ribs located between the tubular body of the fabric and the rubber lining, whereby the lining is caused to bulge inwardly along said lines, to form internally protruding ridges on each side of, and in close proximity to, the lines of crease, substantially as and for the purpose herein before set forth.

ln testimony whereof l ax my signature in presence of two witnesses.

BENJAMN L. STO.

Witnesses:

EVELYN L. Noms, Nnw'ron lil". ll/llcKnon. 

